| ISLES CONSTRUCTION CANTERBURY LIMITED | Registered | NZ Limited Company | 4993560 | government contract suppliers |
| ISLES CONSTRUCTION LIMITED | Registered | NZ Limited Company | 1604964 | government contract suppliers |
| ISOMETRIC SOLUTIONS LIMITED | Registered | NZ Limited Company | 1763831 | government contract suppliers |
| ISOVIST LIMITED | Registered | NZ Limited Company | 4420278 | government contract suppliers |
| ISS FACILITY SERVICES LIMITED | Registered | NZ Limited Company | 70236 | government contract suppliers |
| ISS LIMITED | Registered | NZ Limited Company | 549815 | government contract suppliers |
| Isthmus Group | Unknown | - | - | government contract suppliers |
| IsthmusGroup Ltd | Unknown | - | - | government contract suppliers |
| IT EFFECT LIMITED | Registered | NZ Limited Company | 2393054 | government contract suppliers |
| IT EVOLUTION LIMITED | Registered | NZ Limited Company | 5421833 | councillor interest |
| IT Simply Ltd | Unknown | - | - | government contract suppliers |
| IT TAKES A VILLAGE HUB (NZ) LIMITED | Registered | NZ Limited Company | 7926816 | government contract suppliers |
| ITHQ NZ LIMITED | Registered | NZ Limited Company | 6119447 | government contract suppliers |
| ITICKET.CO.NZ LIMITED | Registered | NZ Limited Company | 1474293 | government contract suppliers |
| ITL TECHNOLOGIES LIMITED | Registered | NZ Limited Company | 307827 | government contract suppliers |
| ITRON NEW ZEALAND LIMITED | Registered | NZ Limited Company | 5483962 | government contract suppliers |
| IVITA HEALTH SERVICES LIMITED | Registered | NZ Limited Company | 1909992 | government contract suppliers |
| IVOCLAR VIVADENT LIMITED | Registered | NZ Limited Company | 104588 | government contract suppliers |
| Ivor Walter Stickley Charitable Trust | Registered | Charitable Trust | - | councillor interest |
| IVORY LIMITED | Registered | - | - | |
| Iwi Collective Partnership | Unknown | - | - | iwi subsidiaries |
| Iwi Fund | Unknown | - | - | corporate donations |
| IZARD WESTON NOMINEES LIMITED | Removed | NZ Limited Company | 29215 | government contract suppliers |
| J & D ADOLPH LIMITED | Registered | NZ Limited Company | 1282624 | kanoa recipients |
| J & E Milmine Family Trust | Unknown | - | - | councillor interest |
| J & G Ayling Partnership | Unknown | - | - | councillor interest |
| J & K JACKSON LIMITED | Registered | NZ Limited Company | 145283 | |
| J & K LAND HOLDINGS LIMITED | Registered | - | - | |
| J & T Glover Partnership | Unknown | - | - | councillor interest |
| J & T PHILLIPS LIMITED | Registered | NZ Limited Company | 1172739 | government contract suppliers |
| J A & AK McPhail Family Trust | Unknown | - | - | councillor interest |
| J and R Russell Family Trust | Unknown | - | - | councillor interest |
| J C PLUMBING SOLUTIONS LIMITED | Registered | NZ Limited Company | 4133198 | government contract suppliers |
| J Cotter Refrigeration & Air-conditioning Ltd T/A Perfect Air | Unknown | - | - | government contract suppliers |
| J Cumpstone Family Trust | Unknown | - | - | councillor interest |
| J D Coleman Trust | Unknown | - | - | mp interest |
| J D EVANS TRUSTEE LIMITED | Registered | NZ Limited Company | 1938511 | councillor interest |
| J Eason Family Trust | Unknown | - | - | councillor interest |
| J H YEARSLEY LIMITED | Registered | NZ Limited Company | 3828856 | government contract suppliers |
| J HEALEY FERAL GOAT CONTROL LIMITED | Registered | NZ Limited Company | 5888311 | government contract suppliers |
| J J NIVEN ENGINEERING LIMITED | Registered | NZ Limited Company | 823200 | government contract suppliers |
| J M COULTER FLOORING LIMITED | Registered | NZ Limited Company | 365672 | government contract suppliers |
| J M Ogle No.1 Trust | Unknown | - | - | councillor interest |
| J MACK BUILDERS LIMITED | Registered | NZ Limited Company | 8129242 | government contract suppliers |
| J R & S D LIMITED | Removed | NZ Limited Company | 6115235 | |
| J Skipper Consulting | Unknown | - | - | government contract suppliers |
| J SWAP CONTRACTORS LIMITED | Registered | NZ Limited Company | 178106 | government contract suppliers |
| J. A. RUSSELL LIMITED | Registered | NZ Limited Company | 94588 | government contract suppliers |
| J.A Russell Ltd. | Unknown | - | - | government contract suppliers |
| J.B. ANDERSONS FAMILY TRUST MANAGEMENT COMPANY LIMITED | Removed | NZ Limited Company | 606936 | councillor interest |
